Fig. 7From: Twentieth century Iranian carpets: investigation of red dye molecules and study of traditional madder dyeing techniquesChromatogram of Dyed group one part B—a DG1-B14 at 255 nm, b DG1-B14 at 430 nm, c DG1-B15 at 255 nm, d DG1-B15 at 430 nmBack to article page